1910 (dated) 32.25 x 49 in (81.915 x 124.46 cm) This is a circa 1910 waxed linen banner depicting a detailed cross-section of the Great Pyramid of Giza, Egypt. It is based on the 1909 studies conducted by Morton Edgar and his brother John Edgar, both of whom were dedicated pyramidologists. Their research aimed to uncover theological insights through the structure of the Great Pyramid. Morton Edgar was particularly influenced by the theories of Charles Taze Russell (1852–1916), founder of the Jehovah's Witness movement, who viewed the Pyramid as a prophetic monument linked to biblical eschatology.

The diagram illustrates the northern cross-section of the Pyramid, showcasing its internal passage system, including galleries, chambers, and ventilation shafts. It incorporates data from previous archaeological studies alongside Morton Edgar’s own measurements from 1909. While largely factual, the depiction also reflects the Edgars' interpretative approach to the Pyramid’s significance in relation to celestial alignments and theological theories.

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